30:21-27 Many prayers were put up to God with the peace-offerings. In these Israel looked to God as the God of their fathers, a God in covenant with them. There was also abundance of good preaching. The Levites read and explained the Scriptures. Faith cometh by hearing, and true religion preaching has abounded. They sang psalms every day: praising God should be much of our work in religious assemblies. Having kept the seven days of the feast in this religious manner, they had so much comfort in it, that they kept other seven days also. This they did with gladness. Holy duties should be done with holy gladness. And when sinners humble themselves before the Lord, they may expect gladness in his ordinances. Those who taste this happiness will not soon grow weary of it, but will be glad to prolong their enjoyment.

Then the priests the Levites arose,.... The priests who were of the tribe of Levi; for there were some in Israel that were not, but were made of any of the people, as in the times of Jeroboam; though some supply the copulative "and"; so the Targum: "and blessed the people"; which was the proper work and business of the priests to do; though, while they were blessing, the Levites might be singing:

and their voice was heard; meaning not by the people, though undoubtedly it was, but by the Lord; the Targum is,"their prayer was heard or received;''for the blessing was delivered in a petitionary way, Numbers 6:24, and was no other than a request that God would bless them, which he did:

and their prayer came up to his holy dwellingplace, even unto heaven; see Psalm 3:4 by what means it was known their prayer was heard and accepted cannot be said; there might be some visible token of it, as the people were dismissed, and departed.

Hezekiah Celebrates the Passover…26So there was great joy in Jerusalem, because there was nothing like this in Jerusalem since the days of Solomon the son of David, king of Israel. 27Then the Levitical priests arose and blessed the people; and their voice was heard and their prayer came to His holy dwelling place, to heaven.

Cross References

Numbers 6:23"Tell Aaron and his sons, 'This is how you are to bless the Israelites. Say to them:

Deuteronomy 26:15Look down from heaven, your holy dwelling place, and bless your people Israel and the land you have given us as you promised on oath to our ancestors, a land flowing with milk and honey."

2 Chronicles 23:18Then Jehoiada placed the oversight of the temple of the LORD in the hands of the Levitical priests, to whom David had made assignments in the temple, to present the burnt offerings of the LORD as written in the Law of Moses, with rejoicing and singing, as David had ordered.

Psalm 68:5A father to the fatherless, a defender of widows, is God in his holy dwelling.